forked from mirrors/nixpkgs
131 lines
3.2 KiB
Nix
131 lines
3.2 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.octoprint;
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baseConfig = {
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plugins.curalegacy.cura_engine = "${pkgs.curaengine_stable}/bin/CuraEngine";
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server.host = cfg.host;
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server.port = cfg.port;
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webcam.ffmpeg = "${pkgs.ffmpeg.bin}/bin/ffmpeg";
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};
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fullConfig = recursiveUpdate cfg.extraConfig baseConfig;
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cfgUpdate = pkgs.writeText "octoprint-config.yaml" (builtins.toJSON fullConfig);
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pluginsEnv = pkgs.python.buildEnv.override {
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extraLibs = cfg.plugins pkgs.octoprint-plugins;
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};
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in
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{
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##### interface
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options = {
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services.octoprint = {
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enable = mkEnableOption "OctoPrint, web interface for 3D printers";
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host = mkOption {
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type = types.str;
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default = "0.0.0.0";
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description = ''
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Host to bind OctoPrint to.
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'';
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};
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port = mkOption {
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type = types.int;
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default = 5000;
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description = ''
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Port to bind OctoPrint to.
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'';
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};
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user = mkOption {
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type = types.str;
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default = "octoprint";
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description = "User for the daemon.";
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};
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group = mkOption {
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type = types.str;
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default = "octoprint";
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description = "Group for the daemon.";
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};
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stateDir = mkOption {
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type = types.path;
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default = "/var/lib/octoprint";
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description = "State directory of the daemon.";
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};
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plugins = mkOption {
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default = plugins: [];
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defaultText = "plugins: []";
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example = literalExample "plugins: [ m3d-fio ]";
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description = "Additional plugins.";
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};
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extraConfig = mkOption {
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type = types.attrs;
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default = {};
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description = "Extra options which are added to OctoPrint's YAML configuration file.";
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};
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};
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};
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##### implementation
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config = mkIf cfg.enable {
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users.users = optionalAttrs (cfg.user == "octoprint") (singleton
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{ name = "octoprint";
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group = cfg.group;
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uid = config.ids.uids.octoprint;
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});
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users.groups = optionalAttrs (cfg.group == "octoprint") (singleton
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{ name = "octoprint";
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gid = config.ids.gids.octoprint;
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});
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systemd.tmpfiles.rules = [
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"d '${cfg.stateDir}' - ${cfg.user} ${cfg.group} - -"
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];
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systemd.services.octoprint = {
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description = "OctoPrint, web interface for 3D printers";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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path = [ pluginsEnv ];
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environment.PYTHONPATH = makeSearchPathOutput "lib" pkgs.python.sitePackages [ pluginsEnv ];
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preStart = ''
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if [ -e "${cfg.stateDir}/config.yaml" ]; then
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${pkgs.yaml-merge}/bin/yaml-merge "${cfg.stateDir}/config.yaml" "${cfgUpdate}" > "${cfg.stateDir}/config.yaml.tmp"
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mv "${cfg.stateDir}/config.yaml.tmp" "${cfg.stateDir}/config.yaml"
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else
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cp "${cfgUpdate}" "${cfg.stateDir}/config.yaml"
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chmod 600 "${cfg.stateDir}/config.yaml"
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fi
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'';
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serviceConfig = {
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ExecStart = "${pkgs.octoprint}/bin/octoprint serve -b ${cfg.stateDir}";
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User = cfg.user;
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Group = cfg.group;
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};
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};
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};
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}
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